GB2016063A - Tubing centraliser - Google Patents

Tubing centraliser

Info

Publication number
GB2016063A
GB2016063A GB7907258A GB7907258A GB2016063A GB 2016063 A GB2016063 A GB 2016063A GB 7907258 A GB7907258 A GB 7907258A GB 7907258 A GB7907258 A GB 7907258A GB 2016063 A GB2016063 A GB 2016063A
Authority
GB
United Kingdom
Prior art keywords
centraliser
tubing
flat steel
rods
spring
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
GB7907258A
Other versions
GB2016063B (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
KREFT G
Original Assignee
KREFT G
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by KREFT G filed Critical KREFT G
Publication of GB2016063A publication Critical patent/GB2016063A/en
Application granted granted Critical
Publication of GB2016063B publication Critical patent/GB2016063B/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/10—Wear protectors; Centralising devices, e.g. stabilisers
    • E21B17/1014—Flexible or expansible centering means, e.g. with pistons pressing against the wall of the well
    • E21B17/1021—Flexible or expansible centering means, e.g. with pistons pressing against the wall of the well with articulated arms or arcuate springs
    • E21B17/1028—Flexible or expansible centering means, e.g. with pistons pressing against the wall of the well with articulated arms or arcuate springs with arcuate springs only, e.g. baskets with outwardly bowed strips for cementing operations

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Springs (AREA)
  • Earth Drilling (AREA)

Abstract

A centraliser for the tubing of bores in mining, oilfield work and the like is of the kind consisting of a number of resilient flat steel springs 2 secured at their ends in respective end rings (not shown) each having two half shells coupled by hinges, the improvement being that each flat steel spring is formed by a plurality of spring rods 5 placed adjacent to each other and coupled together to form a unit e.g. by clips 7, the pack of rods being clad in a layer of a heat stable protective material 6 such as a plastics material. <IMAGE>
GB7907258A 1978-03-03 1979-03-01 Tubing centraliser Expired GB2016063B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19782809181 DE2809181B2 (en) 1978-03-03 1978-03-03 Safety centering basket

Publications (2)

Publication Number Publication Date
GB2016063A true GB2016063A (en) 1979-09-19
GB2016063B GB2016063B (en) 1982-05-19

Family

ID=6033466

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7907258A Expired GB2016063B (en) 1978-03-03 1979-03-01 Tubing centraliser

Country Status (3)

Country Link
DE (1) DE2809181B2 (en)
FR (1) FR2418862A1 (en)
GB (1) GB2016063B (en)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1990008245A1 (en) * 1989-01-21 1990-07-26 Cambridge Radiation Technology Limited Drilling apparatus with non-rotating member
WO1999025949A3 (en) * 1997-11-15 1999-07-15 Brunel Oilfield Serv Uk Ltd Improvements in or relating to downhole tools
US6435275B1 (en) 1997-02-21 2002-08-20 Downhole Products Plc Casing centralizer
WO2004015238A1 (en) 2002-08-12 2004-02-19 Eni S.P.A. Integral centraliser
WO2014096858A3 (en) * 2012-12-20 2015-10-01 Bisn Tec Ltd Apparatus for use in well abandonment
US10309187B2 (en) 2014-08-15 2019-06-04 Bisn Tec Ltd. Downhole fishing tool
US10801301B2 (en) 2010-06-04 2020-10-13 Bisn Tec Ltd Releasable alloy system and method for well management
US11199067B2 (en) 2017-04-04 2021-12-14 Bisn Tec Ltd Thermally deformable annular packers
US11401776B2 (en) 2016-05-24 2022-08-02 Bisn Tec Ltd. Downhole operations relating to open hole gravel packs and tools for use therein
US11578556B2 (en) 2014-04-04 2023-02-14 Bisn Tec Ltd. Well casing/tubing disposal
USD983231S1 (en) 2012-04-04 2023-04-11 Summit Casing Services, Llc Casing centralizer having spiral blades
US11867020B2 (en) 2017-11-17 2024-01-09 BiSN Tec. Ltd. Expandable eutectic alloy based downhole tool and methods of deploying such

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD665824S1 (en) 2011-10-28 2012-08-21 Top-Co Cementing Products Inc. Casing centralizer
USD674818S1 (en) 2011-10-28 2013-01-22 Top-Co Cementing Products Inc. Casing centralizer
USD665825S1 (en) 2011-10-28 2012-08-21 Top-Co Cementing Products Inc. Casing centralizer
USD674817S1 (en) 2011-10-28 2013-01-22 Top-Co Cementing Products Inc. Casing centralizer

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1990008245A1 (en) * 1989-01-21 1990-07-26 Cambridge Radiation Technology Limited Drilling apparatus with non-rotating member
US6435275B1 (en) 1997-02-21 2002-08-20 Downhole Products Plc Casing centralizer
WO1999025949A3 (en) * 1997-11-15 1999-07-15 Brunel Oilfield Serv Uk Ltd Improvements in or relating to downhole tools
GB2347953B (en) * 1997-11-15 2002-07-24 Brunel Oilfield Services Casing centraliser
US6666267B1 (en) 1997-11-15 2003-12-23 Brunel Oilfield Services (Uk) Limited Downhole tools
GB2347953A (en) * 1997-11-15 2000-09-20 Brunel Oilfield Services Improvements in or relating to downhole tools
WO2004015238A1 (en) 2002-08-12 2004-02-19 Eni S.P.A. Integral centraliser
US10801301B2 (en) 2010-06-04 2020-10-13 Bisn Tec Ltd Releasable alloy system and method for well management
USD983231S1 (en) 2012-04-04 2023-04-11 Summit Casing Services, Llc Casing centralizer having spiral blades
US10113386B2 (en) 2012-12-20 2018-10-30 Bisn Tec Ltd. Apparatus for use in well abandonment
US10145203B2 (en) 2012-12-20 2018-12-04 Bisn Tec Ltd System and method of using heat sources and alloys in down-hole applications
US10161215B2 (en) 2012-12-20 2018-12-25 Bisn Tec Ltd Apparatus for use in well abandonment
WO2014096858A3 (en) * 2012-12-20 2015-10-01 Bisn Tec Ltd Apparatus for use in well abandonment
US10053950B2 (en) 2012-12-20 2018-08-21 Bisn Tec Ltd Controlled heat source based down-hole plugging tools and applications
US11525329B2 (en) 2012-12-20 2022-12-13 BiSN Tec. Ltd. Apparatus for use in well abandonment
US11578556B2 (en) 2014-04-04 2023-02-14 Bisn Tec Ltd. Well casing/tubing disposal
US10309187B2 (en) 2014-08-15 2019-06-04 Bisn Tec Ltd. Downhole fishing tool
US11053771B2 (en) 2014-08-15 2021-07-06 Bisn Tec Ltd. Downhole fishing tool
US10961806B2 (en) 2014-08-15 2021-03-30 Bisn Tec Ltd Downhole well tools and methods of using such
US10370931B2 (en) 2014-08-15 2019-08-06 Bisn Tec Ltd. Methods and apparatus for use in oil and gas well completion
US11401776B2 (en) 2016-05-24 2022-08-02 Bisn Tec Ltd. Downhole operations relating to open hole gravel packs and tools for use therein
US11536111B2 (en) 2016-05-24 2022-12-27 BiSN Tec. Ltd. Downhole tool deployment assembly with improved heater removability and methods of employing such
US11634966B2 (en) 2016-05-24 2023-04-25 BiSN Tec. Ltd. Combined well plug/chemical heater assemblies for use in down-hole operations and associated heater cartridges
US11199067B2 (en) 2017-04-04 2021-12-14 Bisn Tec Ltd Thermally deformable annular packers
US11867020B2 (en) 2017-11-17 2024-01-09 BiSN Tec. Ltd. Expandable eutectic alloy based downhole tool and methods of deploying such

Also Published As

Publication number Publication date
DE2809181B2 (en) 1980-07-24
FR2418862A1 (en) 1979-09-28
DE2809181A1 (en) 1979-09-06
GB2016063B (en) 1982-05-19

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee